The SMA C51 is a compact sedan produced by the Chinese manufacturer SMA from 2005 to 2016. Positioned as an affordable and practical vehicle, the C51 primarily served the Chinese domestic market, competing with other locally produced sedans. While not officially sold in the United States, understanding the C51 provides insight into the rapidly developing automotive industry in China during the mid-2000s and early 2010s. The C51 represented SMA’s attempt to offer a modern, albeit basic, sedan to a growing middle class.
SMA C51: Overview and Market Position
The SMA C51 was designed to meet the demands of a burgeoning Chinese automotive market seeking reliable and economical transportation. It was a key model for SMA, helping to establish the brand’s presence in a highly competitive landscape. The vehicle’s design and engineering focused on practicality and cost-effectiveness, rather than outright performance or luxury. The C51’s success was tied to its affordability and suitability for urban driving conditions prevalent in China at the time. It offered a standard four-door sedan configuration with seating for five passengers.
Engine & Performance
The SMA C51 1.5 is powered by a 1.5-liter inline four-cylinder gasoline engine, designated JL479QA. This naturally aspirated engine produces 95 horsepower at 6000 rpm and 128 Nm (94.41 lb.-ft.) of torque at 3400 rpm. The engine features a multi-port fuel injection system and a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. This configuration provides a reasonable balance between fuel efficiency and performance for its intended market. The engine’s power-to-weight ratio is 12.2 kg/Hp, and its torque-to-weight ratio is 9.1 kg/Nm. The C51 achieves a maximum speed of 160 km/h (99.42 mph). Fuel economy is rated at 6.5 l/100 km (36.2 US mpg) on the extra-urban cycle. The drivetrain consists of a front-wheel-drive layout coupled with a five-speed manual transmission.
Design & Features
The SMA C51 features a conventional sedan body style with four doors and a trunk. Its design is functional and understated, prioritizing practicality over stylistic flair. The interior is similarly basic, offering essential amenities for comfortable transportation. Safety features, while limited by the vehicle’s price point and the standards of the time, include an Anti-lock Braking System (ABS). The C51’s suspension utilizes an independent McPherson strut setup at the front and a semi-independent longitudinal arm with transverse torsion shaft arrangement at the rear. Braking is handled by ventilated discs at the front and drum brakes at the rear. The steering system is a hydraulic rack and pinion type. The vehicle’s trunk offers a maximum capacity of 520 liters (18.36 cu. ft.).
Technical Specifications
| Brand | SMA |
| Model | C51 |
| Generation | C51 |
| Type (Engine) | 1.5 (95 Hp) |
| Start of production | 2005 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (extra urban) | 6.5 l/100 km (36.2 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 160 km/h (99.42 mph) |
| Emission standard | Euro 3 |
| Weight-to-power ratio | 12.2 kg/Hp |
| Weight-to-torque ratio | 9.1 kg/Nm |
| Power | 95 Hp @ 6000 rpm |
| Power per litre | 63.4 Hp/l |
| Torque | 128 Nm @ 3400 rpm (94.41 lb.-ft. @ 3400 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | JL479QA |
| Engine displacement | 1498 cm3 (91.41 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Compression ratio | 9.8:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Kerb Weight | 1160 kg (2557.36 lbs.) |
| Max. weight | 1540 kg (3395.12 lbs.) |
| Max load | 380 kg (837.76 lbs.) |
| Trunk (boot) space – maximum | 520 l (18.36 cu. ft.) |
| Fuel tank capacity | 51 l (13.47 US gal | 11.22 UK gal) |
| Length | 4435 mm (174.61 in.) |
| Width | 1710 mm (67.32 in.) |
| Height | 1430 mm (56.3 in.) |
| Wheelbase | 2540 mm (100 in.) |
| Front track | 1423 mm (56.02 in.) |
| Rear (Back) track | 1424 mm (56.06 in.) |
| Minimum turning circle | 10.5 m (34.45 ft.) |
| Drivetrain Architecture | ICE, Front wheel drive |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Independent, McPherson with coil spring and anti-roll bar |
| Rear suspension | Semi-independent, longitudinal arms with transverse torsion shafts |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 175/65 R14 |
The SMA C51, while not a groundbreaking vehicle, represents a significant chapter in the growth of the Chinese automotive industry. It provided affordable and reliable transportation to a large segment of the population, contributing to the increased mobility and economic development of China during its period of rapid expansion. Its simple design and focus on practicality made it a popular choice for first-time car buyers and those seeking a no-frills, dependable sedan.
